Revenue from Contracts with Customers (Tables)

3 Months Ended

Apr. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table presents revenue from contracts with customers disaggregated by product line and timing of revenue recognition:

	Three Months Ended April 30,
	2021		2020
Revenue recognized at a point in time:	(in thousands)
Seamap	$	2,913	$	2,014
Klein	1,150		998
Total revenue recognized at a point in time	$	4,063	$	3,012
Revenue recognized over time:
Seamap	$	131	$	175
Total revenue recognized over time	131		175
Total revenue from contracts with customers	$	4,194	$	3,187

The following table presents revenue from contracts with customers disaggregated by geography, based on shipping location of our customers:

	Three Months Ended April 30,
	2021		2020
	(in thousands)
United States	$	359	$	1,075
Europe, Russia & CIS	2,582		1,376
Middle East & Africa	14		76
Asia-Pacific	705		302
Canada & Latin America	534		358
Total revenue from contracts with customers	$	4,194	$	3,187

Contract with Customer, Asset and Liability

As of April 30, 2021, and January 31, 2020, contract assets and liabilities consisted of the following:

	April 30, 2021		January 31, 2021
Contract Assets:	(in thousands)
Unbilled revenue - current	$	136	$	85
Total unbilled revenue	$	136	$	85
Contract Liabilities:
Deferred revenue & customer deposits - current	$	681	$	691
Deferred revenue & customer deposits - non-current	—		—
Total deferred revenue & customer deposits	$	681	$	691